PONE-D-19-29952

Software development outsourcing failure: Identification, categorization and ranking of the customarily occurring requirements engineering issues

PLOS ONE

Dear Dr. Iqbal,

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PLOS ONE

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: The paper seems technically sound and very intelligently written and hence is a good addition in the software engg domain. Following minor improvements are suggested to further improve the paper.

1. The title of the paper is too long and sounds ambiguous. The authors may consider to re-structure the title.

2. Throughout the text the author has not taken care of the capital and small letters.

3. Page 3, Line 51, "The RE related errors occur commonly during 62 SDLC [25]. According to an industrial survey, such errors are 48%" the statement needs to be justified. The context is not clear.

4. Page 15, Table 1. the table should also mention the % of finally accepted papers as compared to initially identified papers.

5. Page 12, Table 2, the identified issues and shortfalls need to be justified.

6. Before conclusion section, the author should have a detailed discussion section.

7. Limitation and future work section needs to be added.

Reviewer #2: Author has performed an extensive and detailed study. He resulted with great outcomes.

Authors have done excellent job for Software development outsourcing failure: Identification, categorization and ranking of

the customarily occurring requirements engineering issues.

A detail delphi process is adopted on extensive data set and a good quality of evidence were collected from literature too to support their claim.

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Reviewer #1: Yes: Dr Basit Shahzad

Reviewer #2: Yes: Kinza Mehr Awan

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Requirements engineering issues causing software development outsourcing failure

PONE-D-19-29952R1

Dear Dr. Iqbal,

We are pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it complies with all outstanding technical requirements.

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With kind regards,

Baogui Xin, Ph.D.

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments: